Václav Jeřábek (1845–1931) was a Czech

mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, mathematical structure, structure, space, Mathematica ...

, specialized in constructive

geometry Geometry (; ) is a branch of mathematics concerned with properties of space such as the distance, shape, size, and relative position of figures. Geometry is, along with arithmetic, one of the oldest branches of mathematics. A mathematician w ...

Life and work

Jeřábek studied at the lower school of

Pardubice Pardubice (; ) is a city in the Czech Republic. It has about 92,000 inhabitants. It is the capital city of the Pardubice Region and lies on the Elbe River. The historic centre is well preserved and is protected as an Cultural monument (Czech Repub ...

and at the higher school of

Písek Písek (; ) is a town in the South Bohemian Region of the Czech Republic. It has about 31,000 inhabitants. The town is known for the oldest bridge in the country. The historic town centre is well preserved and is protected as an urban monument z ...

, then he was to

Vienna Vienna ( ; ; ) is the capital city, capital, List of largest cities in Austria, most populous city, and one of Federal states of Austria, nine federal states of Austria. It is Austria's primate city, with just over two million inhabitants. ...

and studied at Imperial and Royal Polytechnic Institute where he graduated. Although he participated in several leading intellectual circles of Vienna, he remained a Czech with a clear view of patriotism. He began his teaching at the ''Realschule'' of

Litomyšl Litomyšl (; ) is a town in Svitavy District in the Pardubice Region of the Czech Republic. It has about 10,000 inhabitants. It is a former bishopric and Latin Catholic titular see. Litomyšl is known for the château-type castle complex of the Lit ...

(1870), being transferred two years after to the ''Realschule'' of Telč. In 1881, he was appointed professor of the ''Czech Realschule'' in Brno, and became its director in 1901. He retired in 1907, and suffering of a cataract, he died almost completely blind, MacTutor History of Mathematics. in 1931. Jeřábek was one of the men who kept the Czech geometry at the scientific level. He published scientific articles in Czech, German and French, and longer lectures. He is well remembered by the Jerabek hyperbola, the locus of the isogonal conjugate of a point that traverses the Euler line of a triangle. He was honorary member of the Union of Czech mathematicians and member of the scientific societies of

Moravia Moravia ( ; ) is a historical region in the eastern Czech Republic, roughly encompassing its territory within the Danube River's drainage basin. It is one of three historical Czech lands, with Bohemia and Czech Silesia. The medieval and early ...

and

Bohemia Bohemia ( ; ; ) is the westernmost and largest historical region of the Czech Republic. In a narrow, geographic sense, it roughly encompasses the territories of present-day Czechia that fall within the Elbe River's drainage basin, but historic ...

References

Bibliography

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External links

* * {{DEFAULTSORT:Jerabek, Vaclav 19th-century Czech people Mathematicians from Austria-Hungary 1845 births 1931 deaths Czechoslovak mathematicians